From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#59944: Transparency with alpha-background doesn't work well with PNG images on Emacs 29.0.60 Date: Mon, 12 Dec 2022 10:59:35 +0800 Message-ID: <87y1rdiay0.fsf@yahoo.com> References: Reply-To: Po Lu Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31121"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: 59944@debbugs.gnu.org To: Satya Prakash Dahal Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Dec 12 04:00:18 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1p4Z3B-0007t1-Ji for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 12 Dec 2022 04:00:17 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p4Z2z-0002P2-No; Sun, 11 Dec 2022 22:00:05 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p4Z2x-0002Oo-VL for bug-gnu-emacs@gnu.org; Sun, 11 Dec 2022 22:00:04 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1p4Z2w-0007hI-EY for bug-gnu-emacs@gnu.org; Sun, 11 Dec 2022 22:00:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1p4Z2w-0006fN-0P for bug-gnu-emacs@gnu.org; Sun, 11 Dec 2022 22:00:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Po Lu Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 12 Dec 2022 03:00:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 59944 X-GNU-PR-Package: emacs Original-Received: via spool by 59944-submit@debbugs.gnu.org id=B59944.167081399725588 (code B ref 59944); Mon, 12 Dec 2022 03:00:01 +0000 Original-Received: (at 59944) by debbugs.gnu.org; 12 Dec 2022 02:59:57 +0000 Original-Received: from localhost ([127.0.0.1]:49791 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1p4Z2p-0006ee-E9 for submit@debbugs.gnu.org; Sun, 11 Dec 2022 21:59:57 -0500 Original-Received: from sonic306-22.consmr.mail.ne1.yahoo.com ([66.163.189.84]:43386) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1p4Z2m-0006eW-Re for 59944@debbugs.gnu.org; Sun, 11 Dec 2022 21:59:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1670813985; bh=xgfegbzBznrEGgPfEPXOT5exI05c8G2O0Hr7nmbVTFM=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From:Subject:Reply-To; b=jjX5UFlZkL0M7T3h5CcX4x0hBGrc8NtYPC3mNIBs4x9o5keFmR5lVOh1/1XLRFQZtMhMy7AtWIhn+ohlFnfJkQC3eGGE4YydXfCTrqYQlbKxx3C6rflMHFc4NYo9Anx32KDp4g87BGTn5PCRF44e2zMSaLgna4nmjlHA0xAkjiQ3X4grZrFH9OH7QyI4fI4obfYHhLWcZM4YlEx04S+OMrGg6yAJT9A+HH9qHngC3AMs4xAW6ey5iW81z5/Ap1rCmBAevx6jMDJxQ0D6wtD34SRrdpP5I0odxcWtxs1zeqhKFG+YKLP1TGBSMWvnR8GM7BJJ9QSvS5Wgn/1dL4n47Q== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1670813985; bh=OUmrf184lQ9AABw8WKufFTl5oga9lT84DTtvjV7Y1su=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=X73O1HjTyekzQB1MB8E3VSKkKjXiVgDihAJLQhebQeGIGZEPR5zGa261jBBQwBecY/t5xujT/VILjOAeefoaLhD6zhZW1i0ly2bCKfCVvRW0xMNOVvXhOkGNgtqpYL7eQv1XyOrJYe5u8hpLblwsYGNJmgW25Goz1LcyubEIbWIUobXPu1RFQ0iLaLFOlKcsSlNmK42XPY9jsIsKzCFgVRSK3QbT9IR2acEAXyulZG8vWLMT/9EluZ6F2/jFjEuQzKIVXh85TKygnxTPztfzyjgk2QBZPy+DRSgu0h+aQ/FMNtHBX2v3Fv9+1yJwd76wIyYdclSqbuD934agODZRpA== X-YMail-OSG: dheHS6UVM1ld1A_6rvUW0wq4.WPc.5r.1ouqF5mV8VWM2RHJbNrCqYPA5hp6KSc JNHWZBmRFSFa6M2O.PLN4RHgrzHoScSWqTqPaCscon8dudlkfWPOIBCMroLzWXXUQzPLsAY5J3vG TKnLrZiJk7_uOX3OtvYY6RrXMKszU9mC10xGbuhw.Y1kKG942YKTElJymJtwdJYXEM9W133tGVo_ LnECrKXqSL_ME9NRn2GFW3w.qGF43SvHAF5EpWs8I4nvO3na20t38FXaozGhqfPr55LUKrkSLEFg aj6jZ70kICwymFVzK49GpLrQwCopq4vnWB_VXVS5CK_dbNGI7bxP_jZQ0roZLn9hwqJEpNy_2gwg SOOL2DODIhG.agE6FElXY2lB_WjdzgY3WBpJP9MX5Vq1FhRzwjBiqLtNLEBqRBqvXqSrwsIt7vvR 4uNZ3gXX7Prz5_9cU5mmEZYGyUBR1eHpBK7TDVR0CSk3KccDKoThfUmMA8cQcR.jn_cEDbllndRk y7AbGUx8LxzjJB4Y.NgSh0IQvR61RTsoLv1HDQggKOraFxPK3IK_To421nf8weDkrytahm1VCoRV EAiV20YTMcrwmOVxaHRUKOA4Qz4Fg5Hio5vWwTzjuRMiGTVjc0XSh9fNhfJpdIhx5t.U9xT9_22T lpUOCED3msmUlfqm.dc0xcEff9wQHi8o0tmFbNY4nhEgIxiCsvIbKFp8sQTK8QpXBkhed0SxS4EB HiOsGso_acrlP9o8pmzJv6PwlBwX2_zbVfD__y9OmpRbKM1DcdsyE5bcJgUhYj7xd0TqQBAKijI. 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Hermes SMTP Server) with ESMTPA ID 12cbfa3203fa843a2f327c11e05b8892; Mon, 12 Dec 2022 02:59:40 +0000 (UTC) In-Reply-To: (Satya Prakash Dahal's message of "Sat, 10 Dec 2022 19:03:34 +0545") X-Mailer: WebService/1.1.20926 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:250672 Archived-At: Satya Prakash Dahal writes: > PNG images with a transparent background are not transparent. > Look at the image emacs_png_bug.png on the attachment. > This is my first bug report. If I am missing something please let me know. > Below are the commands i used to compile the emacs. > > git clone https://github.com/emacs-mirror/emacs.git > cd emacs > ./autogen.sh > ./configure > ./configure --with-mailutils && make > make install Well, does anyone want to fix this? It should be "as simple" as making libpng use the same code in x_query_frame_color to allocate transparent colors. But I have no idea how to make libpng do that. In the meantime, you can use XPM images for that icon instead, which are free from this problem.